Caster.



PATENTED SEPT. 25, 1906.

A. B. DISS.

GASTER.

APPLIOATION FILED s221523, 1905.

fm: "onlus Parras ca.. u/Asmnran, n. c.

TED STATES PATENT OFFICE.

ALBERT B. DISS, OF NEVARK, NEV. JERSEY, ASSIGNOR TO UNIVERSAL CASTER AND F OUNDRY COMPANY, OF NEWARK, NElV JERSEY, A COR- PORATION OF NEW JERSEY.

CASTER.

Specification of Letters Patent.

Patented Sept. 25, 1906.

Application filed September 23, 1905. Serial No1 279,758.

T all whom, it hefty concern,.-

Beit known that I, ALBERT B. Diss, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented an Improvementin Casters, of which the following is a specification.

My invention relates generally to furniture-casters, and particularly to such large and heavy casters as are employed for pianos ro and other very heavy articles of furniture. These larO'e and heavy casters are usually of cast metal and are subject to much breakage 0n account of rough handling, the great strain, and weight supported 5 and it is the obect of my invention to provide a caster not subject to breakage and that will stand the strain and weight.

In the caster of my invention the parts, with the exception of the easter-wheel, which 2o are subject to the greatest strain and tension and liable to breakage are formed from and stamped up out of heavy sheet metal and are so braced as to increase their strength and rigidity, and they are made with an inter- 2 5 locking characteristic which makes them very rigid. These features are hereinafter more particularly set forth.

In the drawings, Figure l is a vertical section and partial elevation representing the 3o device of my improvement. Fig. 2 is a side elevation of the sleeve that surrounds the pintle and the perforated plate connected thereto. F ig. 3 is a plan of the parts shown in Fig. 2, and Fig. 4 an inverted plan of the 3 5 same parts. Fig. 5 is a cross-section through the disk surrounding the pintle and upon which the tubular leg or other part of the furniture rests. Fig. 6 isa plan of the part shown in Fig. 5, and Fig. 7 is a cross-section 4o of a modified structure.

The caster-wheel a is of usual character. These wheels are usually made of malleable cast metal.

l) represents the aws, which are to be stamped up from sheet metal and bent to the desired shape, the ends being perforated for the trunnions or axle of the casterwvheel.

c represents the pintle, with a broad base and shoulder to rest upon the upper part 5o of the jaws. The pintle passes through an opening in the broad bearing part of the jaws and is riveted thereto in any manner usual in this art, so as to permanently connect the pintle and the j aws, the broadened shouldered portion of the pintle being indicated at c.

d represents a disk-the portion of these casters upon which the tubular leo' or other part of the furniture rests. This disk is one of the essential features of my present invention. It is to be stamped up from a heavy sheet of metal and provided with screw-head holes formed by countersunk flanges 2. The disk is also provided with a dishing center 3 around the central opening in the disk, the inner edge of the dishing center resting upon the shouldered portion c of the pintle. This disk is preferably provided with the upturned flanged peripheryll. The countersunk flanges 2, dislnng center 3, and flanged periphery 4 cause this disk to be exceedingly stiff` and rigid, capable of greater strain, and of supporting greater weight than could possibly be the case if the disk were flat or if it were of east metal. As this disk d is made as a separate part, it is essential that its relation to the pintle should be established and maintained, and for this purpose I employ the perforated plate e and sleeve f. The plate e is provided with a central hole and with openings 5, which are spaced apart to conform to the spaced-apart relation of the countersunk screwhead holes, and said openings are concentric thereto, as will be apparent from Figs. l, 3, et, and 6. The sleeve f, which surrounds the pintle and is connected thereto by upsetting the end of the pintle or by any other securing means well known in this art, is preferably rolled cylindrical from a flat plate, and at one end there are threelongitudinal incisions made for a predetermined distance, which provide four tangs at one end of the sleeve, and these tangs j" are turned over, after the sleeve is passed through the plate e, against one face of said plate, as shown in Figs. Z and 4, after which I prefer to slightly notch the outer surface of the sleeve by pressing out the metal of the sleeve against the upper surface and directly above the plate e, as at 6, so as to assist in fixing the relation of the plate to the sleeve.

In assembling the parts after the casterwheel, jaws, and pintle' are connected the disk d is passed over the pintle and the connected plate c and sleeve j passed over the IOO , proper relation to the disk d with its openpintle, theplate e being brought into'the ings concentric to the flanges of the countersunk screw-head holes of the disk. The end of the pintle is then upsetv or provided with other means well known in this art to connect the parts within which the pintle rotates, so as to prevent separation, and in this condition the plate e and the disk d are in a substantial fixed relation to one another.

While I have shown in Figs. l, 5, and 6 the disk d with a flanged periphery 4, I do not. limit myself to the employment of this flanged periphery. It is true that the flanged periphery greatly stiiens the disk d and forms a finish to the edge of the same in its relation to the plate e, covering over the same when the caster is connected to an article of furniture. In the form of my invention shown in Fig. 7 this flanged periphery is omitted and the parts are shown as they would appear, in which the thickness of the disk d and also the thickness of the platee are poth peripherally manifest. I prefer to make the plate e of a thickness corresponding with the height of the flanges 2 and iianged periphery-4 of the disk d, so that when these parts are in position their surfaces will be in the same plane, so as to bear directly against the under surface of the article of furniture to be supported,.fand I also prefer to make the inner upper edges of the countersunk flanges 2 in the same plane, so that they when thescrews are forced home to place will also rest upon the surface of the article of furniture, and in this manner a solid bearing and great rigidity are secured.

'From the foregoing description, as well as from the drawings, it willbe apparent that the dishing central portion 3 of the disk d, which so greatly stiifens the disk in cross-section, also provides a recess, as it were, to receive the tangsf, overturned from the sleeve f, the partsbeing so proportioned, as shownfrom the'vertical section, Fig. 1,-that the under surface of the plate e and the under surfaces of the tangs f are in contact with the upper surface of the disk d when the parts are brought into their relation of use.

`I claim as my inventionv l. The combination with the caster-wheel, jaws and pintle, of a disk stamped up out of sheet metal, surrounding the pintle and upon which the furniture rests, said disk being provided with a flanged edge and dishing central portion, and screw-holes for attaching-screws formed by countersunk flanges to recessthe screw-heads, such irregular contour stiifening the said disk.

p 2, The combination with the caster-wheel, jaws and pintle, of a disk stamped up out of sheet metal surrounding the pintle and upon which the furniture rests, the said disk being provided with an irregular contour in crosssection for stiffening the same,.and screwholes for attaching-screws, a plate e and connected sleeve f also stamped up from sheet metal, the plate having o enings located concentric to the screw-ho e openings in the disk, and the sleeve surrounding the pintle.

3. The combination with the caster-wheel,

jaws and pintle, of a disk stamped up out of sheet metal, surrounding the pintle and upon `which the furniture rests, said 'disk being provided with a dishing central ortion and countersunk flanges to receive t e heads of the attaching-screws to provide an irregular contour in cross-section to said disk for-stiffening the same, a plate stampediup out of sheet metal and having perforations .agreeing in number and placed so as tok be concentric to the screw-holes of said disk, and a sleeve for surrounding the pintle formed from sheet metal rolled up into cylindrical form and connected to said perforated plate, the saidv disk and plate being placed in contact in the linished caster.

4. The combination with the caster-wheel, jaws and pintle, of a diskstamped up out of sheet metal surroundingthe pintle and upon which the furniture rests', said disk being providedwith a dishing central portion and countersunk flanges to receive the heads vof the attaching-screws tol provide. an irregular contour in cross-section to said disk for stiffening the same, a plate stamped -up out of sheet metal and having perforations agreeing in number and placed so as to be concentric to thek screw-holes of said disk, a sleeve for surrounding the pintle formed from sheet metal rolled up intol cylindrical form-and provided with tangs formed i integral with said sleeve and turned over against the under face of said plate, and avnotch-forrnedby pressing out the metal of the sleeve lagainst the upper surface of said plate for connecting the plate and sleeve, the said disk and plate being placed in contact in the finished caster.

5. The combination with the caster-wheel, `iaws and pintle, of a disk stamped up out of sheet metal, surrounding the pintle `and upon which the furniture rests, said disk being provided with a dishing central portion, a flanged periphery and countersunk flanges to receive the heads of the attaching-screws to provide an irregular contour in cross-section to said disk for stifening the'same, -a plate stamped up out of sheet metal .and having perforations agreeing in number and placed so as to be concentric to the screw-holes of said disk, and a sleeve for surrounding the pintle formed from sheet metal rolled up into cylindrical form and connected to said perforated plate, the ysaid disk andzplate being placed in contact in the finished caster.

6. The combinationI with the caster-wheel, jaws and pintle, of a disk stamped up out of sheet metal, surrounding the pintle and upon which the furniture rests, said `disk being IOO lIO

provided With a dishing central portion, a flanged periphery and countersunk ilanges to receive the heads of the attaching-screws to provide an irregular contour in cross-section to said disk for stiffening the same, a plate stamped up out oi sheet metal and having perforations agreeing in number and placed so as to be concentric to the screw-holes of said disk, a sleeve for surrounding the pintle formed from sheet metal rolled up into cylindrical form and provided With tangs formed integral With said sleeve and turned over against the under face of said plate, and a notch formed by pressing out the metal of the sleeve against the upper surface of said plate for connecting the plate and sleeve, the said disk and plate being placed in contact in the finished caster.

7. The combination with the caster-Wheel, jaws and pintle, of a disk stamped up out of sheet metal, surrounding the pintle and upon which the furniture rests, a plate stamped up out of sheet metal and overlying said disk, and a sleeve for surrounding the pintle formed from sheet metal rolled up into cylindrical form and connected to said plate, the said disk and plate being in contact in the finished caster.

8. The combination with the caster-Wheel, jaws and pintle, of a disk stamped up out of sheet metal, surrounding the pintle and upon which the furniture rests, a plate stamped up out of sheet metal and overlying said disk, a sleeve for surrounding the pintle formed from sheet metal rolled up into cylindrical form and provided With tangs formed integral with said sleeve and turned over against the under 'face of said plate, and means for securing the plate and sleeve together, the said disk and plate being placed in contact in the nished caster.

Signed by me this 21st day of September, 1905.

ALBERT B'. Diss.

Witnesses:

GEO. T. PINCKNEY, S. T. HAVILAND. 

